????:1???????:???????

2??????????

3??????400?4????

4???????????

5?????

??12?????????????22????? (?????????????????????????? ????????????????????????)22??????,?????,???????????????80???????????????,??1997??????????

???????,??????????19?????90?,1??11?????????????????73.9?????????????????,???????35%,??2019??59%?

???????????????????,?????????????,?12??20??,?45.6?????,?????57.2%,?????22%?

??12?17?,????????9300??,??????30%???,?250???????11??,??8.3???,?196%?

?????,??????????????7???,????????????????(?) ??????:??